Injini ya M52B20 - mawonekedwe a unit kuchokera ku BMW!
Zamkatimu
Injini ya M52B20 sinasiye masitolo opanga kuyambira 2000. Idasinthidwa ndi mtundu wa M54. Chigawo chachikulu chinapangidwa m'makonzedwe atatu. Kwa zaka zogulitsa, injiniyo yakhala ikukonzanso kangapo. Tikukubweretserani nkhani zofunika kwambiri pagalimoto iyi!
M52B20 injini - deta luso
Chomera chomwe ma injini a M52B20 adatuluka chinali chomera cha Bavarian Plant Group, cha BMW, chomwe chimagwira ntchito kuyambira 1992 ndipo chili ku Munich. Monga tanena kale, gawo lamagetsi lidapangidwa kuyambira 1994 mpaka 2000.
M52B20 ndi injini ya petulo ya silinda sikisi yokhala ndi mavavu anayi pa silinda mu dongosolo la DOHC. Pa nthawi yomweyo, pisitoni awiri ndi 80 mm, ndi sitiroko - 66 mm. Momwemonso, voliyumu yonse yogwira ntchito ndi 1991 cc.
Injini iyi ya 2.0-lita mwachilengedwe yolakalaka ya sitiroko inayi ili ndi 11: 1 compression ratio ndipo imapanga 148 hp. Kuti mugwiritse ntchito, gwiritsani ntchito mafuta a 0W-30, 0W-40, 5W-30 kapena 5W-40 ndikusintha ma kilomita 10-12 aliwonse. Km kapena miyezi 6.5 iliyonse. Tanki yazinthu imakhala ndi mphamvu yokwana malita XNUMX.
Mitundu yamagalimoto omwe injini idayikidwapo
Injini ya M52B20 idapatsa E36 mndandanda wachitatu komanso E39 yachisanu. Akatswiri a BMW adagwiritsanso ntchito msonkhanowu m'magalimoto a E46 kuyambira kumapeto kwa zaka za m'ma 90, ndipo injiniyo idawonekeranso mu E38 7 Series ndi E36/E37 Z3.
Mapangidwe a galimoto
Injini ya 52-lita yokhala pakati pa silinda sikisi ndi ya mndandanda wa MX. Pachifukwa ichi, pali zofanana zambiri pamapangidwe pakati pa chitsanzo ichi ndi mitundu ya M52B24, M52B25, M52B28 ndi S52B32. Chida cha M52B20 chinalowa m'malo mwa mtundu wa M50B20.
Okonza BMW adaganiza zogwiritsa ntchito chipika cha aluminiyamu ya silinda. Izi zidagwiritsidwanso ntchito kupanga mutu wa DOHC wa 32-valve. Poyerekeza ndi mtundu wa M50B20, ma pistoni atsopano ndi ndodo zolumikizira zazitali za 145 mm zimagwiritsidwanso ntchito.
Zida za injini zimaphatikizansopo njira yosinthira valve nthawi ya VANOS pokhapokha pa camshaft yolowera, komanso njira yosavuta yolowera, yomwe imapangidwa ndi pulasitiki. Injiniyo ilinso ndi 154cc mafuta ojambulira.
Momwe mungakulitsire kukana kuvala kwa ma cylinder liners?
Pankhani ya M52B20, gawo lowonjezera la Nikasil linagwiritsidwa ntchito pazitsulo za silinda. Chophimbacho chimapangidwa ndendende ndi electrophoretically lipophilic wosanjikiza wa faifi tambala ndi silicon carbide. Kugwiritsiridwa ntchito kwake kunapangitsa kuti zigawo zomwe zimagwiritsidwa ntchito zikhale zolimba, zofanana ndi zitsulo zotayidwa kapena chromium.
Mayankho atsopano mu 1998 - kodi mapangidwe anjinga adapangidwa bwanji?
Patatha zaka zinayi powertrain idayamba kugulitsidwa, BMW idaganiza zochitapo kanthu kuti apititse patsogolo kapangidwe kake. Zopangira zitsulo zotayira zidawonjezeredwa ku chipika cha aluminiyamu ya silinda. Kuphatikiza apo, ndodo zolumikizira, pistoni ndi dongosolo loziziritsa zamangidwanso kwathunthu.
Zinanso zidawonjezeredwa ndi Double-VANOS system, DISA variable geometry intake manifold and a electronic throttle body. Kukweza mavavu kunali 9,0 / 9,0 mm, ndipo gawo lamagetsi losinthidwa limatchedwa M52TUB20. Mu 2000, izo m'malo chitsanzo pa mndandanda M54 - M2,2B54 wagawo ndi buku la malita 22.
Ntchito ndi mavuto ambiri
Zowonongeka zomwe zimachitika kawirikawiri ndi ma radiator ndi matanki okulitsa. Ogwiritsa ntchito magalimoto okhala ndi M52B20 amadandaulanso za mpope wamadzi wadzidzidzi komanso kusagwira bwino ntchito, komwe nthawi zambiri kumachitika chifukwa cha valve yolakwika. Palinso mavuto ophimba ma valve ndi kutuluka kwa mafuta, komanso ma valve osweka osweka.
Zomwe muyenera kuyang'ana posankha injini ya M52B20?
Dziwani kuti injini M52B20 ndi mayunitsi akale ndithu - womaliza ndi zaka zoposa 20. Pachifukwa ichi, mwinamwake, aliyense wa iwo ali ndi mtunda wautali. Mfundo yofunika kwambiri pa nthawi yotereyi ndikuwunika mwatsatanetsatane ndikuzindikiritsa ziwalo zomwe zatha kwambiri.
Chofunika kwambiri ndi chikhalidwe chabwino cha injini yothandizira. Iyi ndi njira yozizira yomwe ili ndi pampu yamadzi, radiator ndi thanki yowonjezera. Zigawozi ndizo zomwe zimalephera kwambiri. Choncho, musanagule njinga, muyenera kufufuza utumiki wawo.
Kumbali ina, zigawo zamkati monga ma valve, unyolo, ndodo zolumikizira, zisindikizo ndi zisindikizo zimatha kugwira ntchito popanda mavuto ngakhale ndi makilomita oposa 200 oyendetsa galimoto. km. Pakugawa ndalama zina zokonzetsera koyamba ndikubweretsa chipangizocho kuti chikhale bwino kwambiri, injini ya BMW M52B20 idzakulipirani ndi ntchito yabwino - ngakhale zaka zake.
